5 Questions
How is electric current expressed?
By the amount of charge flowing through a particular area in unit time
What is the function of a switch in an electric circuit?
It makes a conducting link between the cell and the bulb
What happens to the electric current when a circuit is broken?
The current stops flowing
What provides the flow of charges in a torch to make the bulb glow?
Cells or a battery
What constitutes an electric circuit?
A continuous and closed path of an electric current
Study Notes
Electric Circuits and Current
- Electric current is expressed in amperes (A), with 1 ampere equal to 1 coulomb per second.
The Role of Switches
- A switch in an electric circuit functions to control the flow of electric current by opening or closing the circuit.
Effects of a Broken Circuit
- When a circuit is broken, the electric current stops flowing.
Flow of Charges in a Torch
- The flow of charges in a torch is provided by a battery, which enables the bulb to glow.
Components of an Electric Circuit
- An electric circuit consists of a conductor, such as a wire, a source of voltage (e.g., a battery), and a device that uses the electric energy (e.g., a light bulb).
Test your knowledge of electric current and circuits with this quiz. Explore concepts such as conductors, flow of electric charge, and the role of cells and batteries in creating electric current.
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